- A classmate claims there is an agreement error in this sentence. Which statement about the sentence is accurate?
Answer: The sentence is correct as written: both adjectives agree properly in gender and number with their respective subjects
When you see a question about adjective agreement in Spanish, your job is to check two things for each adjective: does it match its subject's gender and number?
In this sentence, "El profesor" is singular and masculine, so "aburrido" is correct — singular, masculine. "Los estudiantes" is plural and masculine (or mixed-gender), so "aburridos" is correct — plural, masculine. Both adjectives agree perfectly with their respective subjects, and both verbs ("es" for singular, "son" for plural) match their subjects as well. The sentence is correct as written, making C the right answer.
Now let's look at why the distractors are wrong. A claims Spanish defaults to feminine for mixed-gender groups — this is the opposite of the rule. Spanish defaults to masculine when a group is mixed-gender or when gender is unspecified, so "aburridos" is exactly right. B argues that "los estudiantes" is a collective noun requiring a singular verb, but "los estudiantes" is simply a regular plural noun, not a collective noun like "el grupo" or "la clase." Plural nouns take plural verbs, so "son" is correct. D introduces a false rule — adjectives following "ser" do not have a fixed gender; they agree with the subject, not the verb itself. Verbs don't carry gender in Spanish.
A useful tip: whenever you spot an adjective agreement question, trace each adjective back to its subject noun and check gender and number separately. Don't let the verb distract you — only the noun determines adjective agreement.
- Which correction is needed to fix the adjective agreement error?
Answer: Change "grande" to "grandes" so the second adjective also agrees with the plural noun "las mochilas"
Whenever you see a question about Spanish adjectives, your first instinct should be to check number and gender agreement — every adjective must match the noun it describes in both of those categories.
In this sentence, the noun is "las mochilas," which is feminine and plural. That means every adjective describing it must also be feminine and plural. The first adjective, "negras," is already correct — it's feminine and plural. The problem is the second adjective, "grande," which is singular. Since "mochilas" is plural, "grande" must become "grandes" to match. That makes B the correct fix: changing "grande" to "grandes" restores proper agreement across both adjectives in the list.
As for the wrong answers: A is based on a false rule — Spanish does not require masculine forms when adjectives appear in a list. Each adjective simply agrees with the noun, regardless of its position. C inverts the logic entirely; you never change the article to match the adjective. The article agrees with the noun ("mochilas" is feminine, so "las" is already correct and should stay). D suggests making "negras" singular to match "grande," but this gets the correction backwards — you fix the adjective that's wrong, not break one that's already right.
A helpful rule of thumb: when a noun has two or more adjectives, each one must independently agree with that noun. Don't let one correct adjective distract you from checking the others — that's exactly the trap this question sets.
- Which correction is needed to fix the verb-agreement error?
Answer: Change "tengo" to "tenemos" because "ella y yo" forms a first-person plural compound subject that requires the nosotros conjugation
When you see a compound subject in Spanish, your first job is to figure out what combined subject the parts create together — because that's what determines the verb form.
"Ella y yo" means "she and I." When you join any subject with "yo," the resulting compound subject is equivalent to "nosotros/nosotras" (we). Because of that, the verb must use the nosotros conjugation — in this case, tener → tenemos. That makes B the correct fix: "Ella y yo tenemos clases por la mañana y por la tarde."
Here's why the other options miss the mark. A suggests the verb should agree with whichever person is named first in the subject — that rule simply doesn't exist in Spanish. Verb agreement is determined by the whole subject, not the first word in it. C claims any compound subject triggers a third-person plural (ellos/ellas) verb. This is only true when the compound subject contains no first- or second-person elements. Since "yo" is part of this subject, it overrides third-person, pulling the verb into first-person plural instead. D introduces tenéis, the vosotros form, which is used when speaking directly to a group of people (second-person plural). Neither "ella" nor "yo" represents a "you" being addressed, so vosotros has no role here.
A handy rule of thumb: whenever "yo" appears in a compound subject, the verb goes to nosotros. Whenever "tú" appears (and no "yo"), the verb goes to vosotros. Let the pronouns in the subject guide you to the right conjugation group.
- Which correction fixes the verb-agreement error in this sentence?
Answer: Change "habla" to "hablan" so the verb agrees with the third-person plural subject "ustedes"
When working with verb agreement in Spanish, your first job is to identify the subject and then match the verb ending to that subject. Every pronoun in Spanish has its own specific verb conjugation — mixing and matching creates agreement errors, which is exactly what happened in this sentence.
The subject here is "ustedes," which means "you all" (used throughout Latin America and formally in Spain). Even though "ustedes" refers to the people you're speaking to, it grammatically behaves like a third-person plural subject, just like "ellos" or "ellas." That means it takes the -an ending for -ar verbs: hablan. Changing "habla" to hablan (choice D) is the correct fix — the verb now properly agrees with its subject.
Choice A is tempting if you think "ustedes" implies a shared group activity, but "hablamos" is the nosotros form, meaning "we speak." Using it would change who is doing the speaking entirely, inserting the speaker into the sentence when the original doesn't include them.
Choice B applies the vosotros form "habláis," which is only used in Spain for informal groups. More importantly, ustedes and vosotros are two different pronouns and never share the same conjugation — they can't be swapped freely.
Choice C avoids fixing the verb and instead changes the subject to "Él" to match "habla." While this creates grammatical agreement, it completely changes the meaning of the sentence from "you all" to "he."
Study tip: Memorize that ustedes always pairs with third-person plural verb forms (-an/-en) — it's one of the most commonly tested agreement traps in Spanish 1.
- The second sentence contains an error. Which correction is needed?
Answer: Change "son" to "es" because the subject "la clase" is third-person singular and requires a singular verb
When you see a sentence with a form of "ser" or "estar," your first instinct should be to check subject-verb agreement: does the verb match the subject in number and person?
In "La clase son muy interesante," the subject is "la clase" — singular, third-person. However, the verb "son" is the third-person plural form of ser (used with ellos/ellas/ustedes). That mismatch is the error. The correct verb is "es," giving you "La clase es muy interesante." Answer A is correct because it fixes the verb to match the singular subject.
Answer B is wrong because it misidentifies where the problem is. "Interesante" is already correct — it agrees with the singular noun "clase." The rule that adjectives must always be plural after ser is simply false; adjectives agree with the subject, not the verb.
Answer C gets things backwards. You don't change the article to match a faulty verb — you fix the verb to match the subject. "La clase" correctly uses a singular article, and that shouldn't change.
Answer D is a trap that drags an unrelated sentence into the problem. The first sentence ("Yo tengo una clase de español") is grammatically fine on its own. Changing "una clase" to "unas clases" introduces an unnecessary edit and doesn't resolve the agreement error in the second sentence at all.
A useful habit: in any Spanish sentence, draw a quick mental arrow from the subject to the verb and ask, do these agree in number? That single check catches a huge percentage of agreement errors on Spanish exams.
- Which change is needed to make the sentence grammatically correct?
Answer: Change "es" to "son" so the verb agrees with the plural subject "mis hermanos"
When you see a Spanish sentence with a subject and verb, your first instinct should be to check subject-verb agreement — the verb must match the subject in both number (singular/plural) and person.
In this sentence, the subject is "mis hermanos," which is plural (more than one sibling). The verb "es" is the third-person singular form of ser, used for subjects like "él," "ella," or "usted." Since the subject is plural, the correct form is "son," the third-person plural conjugation. Changing "es" to "son" fixes the agreement error and makes the sentence grammatically correct — that's why A is the right answer.
The other options each introduce a different kind of error. B suggests changing "inteligentes" to "inteligente," but adjectives in Spanish must agree with the noun they describe in both gender and number. Since "hermanos" is plural, "inteligentes" is already the correct plural form — changing it would actually create a new mistake. C proposes changing "trabajan" to "trabaja," but "trabajan" correctly agrees with the plural subject "mis hermanos." Making it singular would break correct agreement that already exists in the sentence. D suggests changing "mis" to "mi" to match the singular verb "es," but this is backwards thinking — you should fix the verb to match the subject, not shrink the possessive to match a broken verb.
A useful habit: always identify your subject first, determine whether it's singular or plural, then check every verb and adjective in the sentence to make sure they match.
- The second sentence has an error. Which correction is needed?
Answer: Change "hace" to "hacemos" so the verb agrees with the first-person plural subject "nosotros"
When you see a verb paired with a subject pronoun in Spanish, your first instinct should be to check subject-verb agreement — does the verb ending match who is doing the action?
In Spanish, every subject pronoun has its own verb ending. "Nosotros" (we) is first-person plural, and the present-tense form of hacer for nosotros is hacemos. The sentence "Nosotros hace ejercicio" uses "hace," which belongs to él/ella/usted (third-person singular). That mismatch is the error. Swapping "hace" for "hacemos" fixes the agreement and makes the sentence grammatically correct: "Nosotros hacemos ejercicio por dos horas." That's why D is correct.
Looking at the distractors: A misunderstands how Spanish handles nouns. "Hacer ejercicio" is a fixed expression meaning "to exercise," and the noun "ejercicio" doesn't need to become plural to match the subject — verb endings carry that job, not the object noun. B would technically create agreement (él/ella → hace), but it changes the meaning entirely — suddenly only one person is exercising, which contradicts the passage's context of two friends. Choosing B means you're fixing the verb by breaking the sentence's intended meaning, which is never the right approach. C is a common trap: students sometimes confuse nosotros with a third-person "they" form. "Hacen" is the ellos/ellas (third-person plural) conjugation, not the nosotros form. Nosotros has its own distinct ending: -amos/-emos/-imos.
A handy study tip: memorize the six present-tense endings as a set. Nosotros always ends in -mos — that suffix is your signal for "we."
- What correction is needed to fix the agreement error in this sentence?
Answer: Change "trabaja" to "trabajan" because a compound subject joined by "y" is plural and requires a third-person plural verb
When a sentence has a compound subject — two or more nouns joined by y (and) — Spanish treats that subject as plural, which means the verb must reflect third-person plural agreement. That's the core concept being tested here.
In the original sentence, "Mi madre y mi padre" combines two people into one compound subject, making it equivalent to "they." The verb trabaja is the third-person singular form (used for él/ella/usted), which doesn't match. The correct form is trabajan — the third-person plural — making answer C the right correction. Think of it this way: if you can replace the subject with ellos, you need the -n ending on the verb.
The other choices each reflect a different misconception. A is tempting if you misread the question as being about adjective agreement rather than verb agreement — grande does correctly modify oficina (singular), so no change is needed there. B suggests rewording the subject to use con (with) instead of y — but this is a workaround, not a correction, and it subtly changes the meaning. More importantly, it avoids fixing the actual grammatical error. D confuses the article's role entirely: una correctly agrees with oficina (feminine singular), and changing it to unos would be both grammatically wrong and logically disconnected from the subject.
A useful study habit: whenever you see y connecting two nouns as a subject, immediately check whether the verb ends in -n. That -n is your signal for third-person plural agreement in Spanish.
- Which correction best fixes the agreement errors in the adjectives?
Answer: Change "trabajador" to "trabajadoras" and "simpático" to "simpáticas" so both adjectives agree with the feminine plural subject
When a question asks you to fix adjective agreement in Spanish, your first move is to identify the gender and number of the subject, then check whether every adjective matches both of those features.
Here, the subject is ellas — a feminine, plural pronoun referring to unas chicas. That means every adjective describing them must be feminine AND plural. Looking at the original sentence, trabajador is masculine singular and simpático is masculine singular, so both need to be corrected. The proper feminine plural forms are trabajadoras and simpáticas, making A the correct answer — it fixes both errors consistently and logically.
B is wrong because it applies masculine plural endings (trabajadores, simpáticos). Masculine plural is only used as a "default" when a group contains mixed genders, but here the subject is explicitly all female (ellas, chicas), so masculine forms are incorrect.
C contains a very common misconception: that adjectives ending in a consonant (like -or) are invariable and don't change for gender. This is false. Adjectives ending in -or do change — they add -a for feminine singular and -as for feminine plural. So trabajador absolutely must become trabajadoras here; leaving it unchanged is an error.
D avoids fixing the adjectives altogether by changing the noun instead. This is backwards thinking — you adjust adjectives to match the subject, not the other way around, especially when the subject is already established in context.
Study tip: For any adjective in Spanish, always ask two questions: What gender? and What number? Both must match the noun every time, no exceptions for consonant endings.
- The second sentence has a verb-ending error. Which correction is needed?
Answer: Change "estamos" to "estás" so the verb agrees with the second-person singular subject "tú"
When you see a verb in a Spanish sentence, your first job is to check whether its ending matches the subject pronoun. Spanish verbs change form depending on who is doing the action — this is called subject-verb agreement, and it's one of the most frequently tested concepts in Spanish 1.
In the second sentence, "Tú estamos cansada," the subject is "tú" (you, singular), but "estamos" is the nosotros form of estar, meaning "we are." That mismatch is the error. The correct form of estar for "tú" is estás, making the corrected sentence "Tú estás cansada también." That's exactly what answer B fixes — and it's the right choice.
Answer A is a distraction about adjective gender. While adjective agreement is a real concept, it's not the problem here. "Cansada" is perfectly correct if the subject "tú" refers to a female speaker. Changing it to "cansado" would only be appropriate for a male subject. Answer C suggests changing "Tú" to "Nosotros" so the subject matches "estamos" — but that completely changes the meaning of the sentence, which is supposed to be about a second person, not the same group from the first sentence. Answer D introduces a vocabulary swap, changing "también" (also) to "tampoco" (neither/not either). This would only make sense if the sentence were negative, which it isn't.
A quick study tip: whenever you spot a subject pronoun in Spanish, immediately check that the verb ending matches it. Memorize the estar chart — yo estoy, tú estás, él/ella está, nosotros estamos — and you'll catch these errors instantly.
